单词：suboutcrop
[矿业] 掩盖矿脉露头
单词：suboutcrop 相关文章
Dismounting to assist her, Walcott discovered that the horse had turned a slab of shale that contained fossil crustaceans of an especially ancient and unusual type. 沃尔科特跳下马来扶她，却发现马将一块页岩圈了个身。页岩里有
发表于:2019-02-17 / 阅读(105) / 评论(0)
万物简史
万物简史